The Backstreet Boys and the New Kids on the Block teamed up for a joint performance at the 2010 American Music Awards last night (Sun. Nov 21) as a preface for their newly announced joint-tour, scheduled to kick off next summer.

The boy bands took the crowd back to the 90’s as they performed their hits, including BSB’s “Everybody (Backstreet’s Back)” and NKOTB’s classic “Hangin’ Tough”, and more, as they closed out the show.

Performance pics (along with video footage) can be found below…